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Re: Are Roof Top Units considered Dead or Live Loads?

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In India, it is called a Desert Cooler.

It is very effective in dry summer months. In humid,
hot weather, it adds to the misery.

I believe this type of cooler is common in Arizona.

Rajendran

--- "L. Pack" <Lloyd(--nospam--at)pecid.com> wrote:

> On 6 Jan 2005, at 11:29, Paul Ransom wrote:
> 
> > > From: "Dennis S. Wish, PE"
> <dennis.wish(--nospam--at)verizon.net>
> > 
> > > I've never considered a roof top A/C or Swamp
> Cooler to be a dead load.
> > 
> > What's a swamp cooler?
> > 
> > -- 
> > R. Paul Ransom, P. Eng.
> > Civil/Structural/Project/International
> > Burlington, Ontario, Canada
> > <mailto:ado26(--nospam--at)hwcn.org>
> <http://www.hwcn.org/~ad026/civil.html>
> > 
> 
> Paul,
> 
> A swamp cooler is an evaporative cooler.  It's
> generally box shaped,
> about 2.5' x 2.5' x 3' tall, and has a pan in the
> bottom that gets filled
> with water.  A submersable pump sits in the pan and
> pumps the water
> to the tops of fiber pads that surround the sides of
> the box.  The water
> wets the pads, and a large "squirrel cage" fan pulls
> air through the 
> wetted pads, evaporating the water and cooling the
> air, which then
> enters the space that is being cooled.
> 
> I suspect that the term swamp cooler comes from the
> increased
> humidity that the coolers create, making the air
> feel muggy and
> swampy, or from the smells that often accompany
> these types of
> coolers, or from the growth in the pan, that can be
> somewhat
> swamp-like. <grin>
> 
> HTH,
> Lloyd Pack
> 
> 
> 
> 
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